Feature Request: Switch to allow left-click on tray icon to show pick list of desktops to choose from

Changing windows is something I do far more often than changing settings. Since settings is available by right-clicking the tray icon anyway, how about making left-click let you pick from a list of desktops to switch to?

To not upset people who like it as is, this change could depend on a config switch to enable it.

Thanks!